959
FNCA52 TJSJ 270730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST MON APR 27 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-272000-
SOUTHEAST COASTAL PLAINS-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 60 60
TEMP (24H TREND) 89 (+3) 72 (-1) 87
RH % (24H TREND) 62 (+4) 95 (+1) 65
WIND 20FT/EARLY(MPH) SE 8 E 5 E 9
WIND 20FT/LATE(MPH) SE 9 NE 5 SE 10
MIXING HGT(FT-AGL/MSL)3820 4090
TRANSPORT WND (MPH) SE 8 SE 7
VENT RATE (KT-FT) 26740 24540
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-272000-
SOUTHERN HILLS-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 60 60
TEMP (24H TREND) 85 (+3) 69 (-2) 83
RH % (24H TREND) 66 (-2) 99 (+3) 71
WIND 20FT/EARLY(MPH) SE 8 SE 5 E 6
WIND 20FT/LATE(MPH) SE 9 E 5 SE 6
MIXING HGT(FT-AGL/MSL)4800 4910
TRANSPORT WND (MPH) SE 8 SE 6
VENT RATE (KT-FT) 33600 24550
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-272000-
NORTH COASTAL PLAINS-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 80 40 90
TEMP (24H TREND) 89 (+1) 71 (-1) 87
RH % (24H TREND) 61 (0) 100 (+3) 65
WIND 20FT/EARLY(MPH) E 5 SE 8 E 5
WIND 20FT/LATE(MPH) E 9 SE 5 E 6
MIXING HGT(FT-AGL/MSL)4240 3790
TRANSPORT WND (MPH) SE 5 SE 3
VENT RATE (KT-FT) 16960 11370
DISPERSION 5 4
DSI 5 2 4
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-272000-
NORTHERN HILLS-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 80 30 90
TEMP (24H TREND) 87 (+1) 69 (-1) 85
RH % (24H TREND) 62 (0) 100 (+1) 69
WIND 20FT/EARLY(MPH) LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) NE 5 LGT/VAR LGT/VAR
MIXING HGT(FT-AGL/MSL)4990 4770
TRANSPORT WND (MPH) SE 5 SE 2
VENT RATE (KT-FT) 19960 9540
DISPERSION 5 4
DSI 5 1 4
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-272000-
WEST COAST-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 60 60
TEMP (24H TREND) 90 (+2) 72 (0) 88
RH % (24H TREND) 62 (-2) 98 (+2) 67
WIND 20FT/EARLY(MPH) SE 10 E 10 E 8
WIND 20FT/LATE(MPH) SE 11 E 10 E 8
MIXING HGT(FT-AGL/MSL)4410 4260
TRANSPORT WND (MPH) SE 9 SE 5
VENT RATE (KT-FT) 35280 17040
DISPERSION 5 5
DSI 6 4 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-272000-
EASTERN INTERIOR-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 60 70
TEMP (24H TREND) 87 (+2) 71 (-1) 85
RH % (24H TREND) 63 (+1) 99 (+2) 68
WIND 20FT/EARLY(MPH) SE 8 SE 9 SE 5
WIND 20FT/LATE(MPH) SE 9 SE 8 SE 6
MIXING HGT(FT-AGL/MSL)5260 4940
TRANSPORT WND (MPH) S 8 SE 6
VENT RATE (KT-FT) 36820 24700
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-272000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 70 70
TEMP (24H TREND) 83 (+3) 68 (-2) 82
RH % (24H TREND) 70 (+2) 100 (+1) 72
WIND 20FT/EARLY(MPH) SE 5 SE 6 SE 5
WIND 20FT/LATE(MPH) SE 8 SE 5 SE 5
MIXING HGT(FT-AGL/MSL)3940 3670
TRANSPORT WND (MPH) S 9 SE 6
VENT RATE (KT-FT) 31520 18350
DISPERSION 5 4
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-272000-
CENTRAL MOUNTAIN RANGE-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS SHOWERS TSTMS
CHANCE PRECIP (%) 80 50 80
TEMP (24H TREND) 86 (+6) 67 (-1) 82
RH % (24H TREND) 65 (-4) 100 (+2) 73
WIND 20FT/EARLY(MPH) SE 6 SE 5 LGT/VAR
WIND 20FT/LATE(MPH) SE 8 SE 5 LGT/VAR
MIXING HGT(FT-AGL/MSL)5680 5450
TRANSPORT WND (MPH) S 7 SE 5
VENT RATE (KT-FT) 34080 21800
DISPERSION 5 5
DSI 6 1 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-272000-
CAYEY MOUNTAIN RANGE-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 70 60
TEMP (24H TREND) 82 (+2) 69 (-1) 80
RH % (24H TREND) 71 (+3) 100 (+1) 75
WIND 20FT/EARLY(MPH) SE 5 SE 5 E 5
WIND 20FT/LATE(MPH) SE 6 LGT/VAR SE 6
MIXING HGT(FT-AGL/MSL)4420 4180
TRANSPORT WND (MPH) S 8 SE 7
VENT RATE (KT-FT) 30940 25080
DISPERSION 5 5
DSI 6 1 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-272000-
VIEQUES-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 70 70
TEMP (24H TREND) 87 (+1) 73 (-2) 87
RH % (24H TREND) 65 (+1) 95 (+2) 63
WIND 20FT/EARLY(MPH) SE 10 SE 10 SE 6
WIND 20FT/LATE(MPH) SE 9 E 11 SE 6
MIXING HGT(FT-AGL/MSL)2310 2670
TRANSPORT WND (MPH) SE 10 SE 9
VENT RATE (KT-FT) 20790 21360
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-272000-
CULEBRA-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 70 70
TEMP (24H TREND) 88 (+2) 75 (-2) 88
RH % (24H TREND) 64 (-2) 94 (+3) 63
WIND 20FT/EARLY(MPH) SE 10 SE 10 SE 8
WIND 20FT/LATE(MPH) SE 9 SE 11 SE 8
MIXING HGT(FT-AGL/MSL)2650 2700
TRANSPORT WND (MPH) SE 12 SE 9
VENT RATE (KT-FT) 26500 21600
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-272000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY PCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 50 60 50
TEMP (24H TREND) 90 (+3) 72 (-2) 89
RH % (24H TREND) 58 (+2) 97 (+5) 61
WIND 20FT/EARLY(MPH) E 12 E 12 E 10
WIND 20FT/LATE(MPH) SE 13 E 11 SE 11
MIXING HGT(FT-AGL/MSL)4190 4470
TRANSPORT WND (MPH) SE 12 SE 9
VENT RATE (KT-FT) 41900 35760
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-272000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 70 60
TEMP (24H TREND) 85 (+1) 74 (-3) 85
RH % (24H TREND) 67 (-1) 94 (+2) 65
WIND 20FT/EARLY(MPH) SE 11 SE 11 E 8
WIND 20FT/LATE(MPH) SE 10 E 11 SE 8
MIXING HGT(FT-AGL/MSL)2700 3040
TRANSPORT WND (MPH) SE 13 SE 8
VENT RATE (KT-FT) 29700 21280
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-272000-
ST CROIX-
330 AM AST MON APR 27 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 70 60
TEMP (24H TREND) 86 (+1) 74 (-2) 86
RH % (24H TREND) 68 (-1) 99 (+3) 65
WIND 20FT/EARLY(MPH) SE 10 SE 11 E 10
WIND 20FT/LATE(MPH) SE 11 E 11 E 10
MIXING HGT(FT-AGL/MSL)3620 4410
TRANSPORT WND (MPH) SE 13 SE 13
VENT RATE (KT-FT) 39820 48510
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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